Driving the car at 30 mph, the vehicle suddenly failed to accelerate while pressing on the gas pedal. I was forced to pull over as soon as possible to try to resolve the issue at hand. Thankfully, the breaks still worked and I was able to come to a full stop, turn off the car, and restart the car. There were no warning lamps/ messages that appeared before or after the time of the incident. (Incident occurred Aug 11) This is the second incident that my car's acceleration failed while in the middle of driving. Previously, this had happened while on the freeway during stop and go congestion (Oct 2025). This is a severe life-threatening safety concern as the failures have happened while the car is in motion during traffic. When I have taken the vehicle in for an inspection and diagnosis after the first incident, the Hyundai dealership was not able to reproduce the problem (Oct 2025) and therefore, could not provide any corrective services. I have not taken it in again for the second incident. The car is available for inspection upon request.

Source: NHTSA complaint ODI #11758386 · view all complaints for this vehicle at nhtsa.gov

1. The HORN suddenly stops working. This happened 3x in a 6 month span. The first time the horn wouldn't work all day. However, next day it did. Second time it didn't work for 3 days. Last time it stopped working completely just before Memorial Day weekend. I have read it is a known issue in Hyundai Ioniq 6 forums. 2. Forward Collision Warning is to Invasive. Once it even stopped on the freeway while trying to merge in a difficult interchange. 2 cars almost hit me from behind when my car suddenly stopped. I was however in complete control of the situation. 3. Rear Backup camera stops to much when person is 8 feet past my car. It just suddenly STOPS even when person is walking away from the car. Snaps my neck too. Also, stops at night after rain. I believe it sees a reflection and thinks it is a hazard.

Source: NHTSA complaint ODI #11748519 · view all complaints for this vehicle at nhtsa.gov

Vehicle steering wheel was off-center and the vehicle wandered whenever the road changed camber or had rough sections. The vehicle was purchased used from Carvana,. I took it in for 4-wheel alignment and the tech reported that "All adjustment hardware at rear were pretty loose", and stated that it probably left the factory this way as he saw no evidence of prior adjustments. The left rear tire is badly worn on the outside and he recommended immediate replacement, which is awaiting warranty claim processing. Possible safety issues: Rear tire blowout, rear suspension alignment failure with loss of control.

Source: NHTSA complaint ODI #11725281 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2024 Hyundai Ioniq 6. The contact stated that upon attempting to install a child safety seat, the rear driver's and passenger's side seat belt tongues failed to fit into the buckle, preventing the seat belt from fastening securely, and compromising the safety restraint system. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown. The VIN was not available.

Source: NHTSA complaint ODI #11646034 · view all complaints for this vehicle at nhtsa.gov

I received the safety recall letter and attempted to make an appointment with Modern Hyundai of Concord, NC. Service appointments were listed online beginning at the end of August and had available time slots, I wanted to check on any further availability so I called. Once I had the service department on the phone I was told that the earliest they would be able to schedule me is in October. I reiterated this was a safety recall and I purchased the vehicle from this dealership and was told that the dealership is a "high volume service center" and nothing could be done until October.

Source: NHTSA complaint ODI #11608051 · view all complaints for this vehicle at nhtsa.gov